<?php

class base
{
	protected $objRd;
	function __construct(){
	}
	
	public function set_rd($objRd){
		$this->objRd = $objRd;
	}

/**
 *
 * @param array arr
 * @return array
**/
	public static function pserialize($arr) 
	{
		return serialize($arr);
	}
/**
 *
 * @param str str
 * @return array
**/
	public static function punserialize($str) 
	{
		if($str == "")
			return "";
		return unserialize($str);
	}

	function __destruct(){
		
	}
}
?>